For a long time afterward, Han Nuo seemed to have disappeared from the world. But the disciples knew that he was somewhere in the mine, but none of them intended to look for him. The miners spontaneously divided into two groups, one group led by Luo Jun, who was mainly engaged in the mining of cloud gold, while the other group continued to be responsible for the mining of nephrite ore.

Seeing that there are fewer and fewer nephrite jade in the mine, and the difficulty of mining and refining the cloud silk gold is very high, the sect has reduced the treatment of rotation in the nephrite mine. This made the number of outer disciples who stayed in the mine fewer and fewer, but fortunately, Han Nuo occasionally gave benefits to everyone, and those who stayed behind received no less income than elsewhere.

And Han Nuo's subordination of the miners' team to the Han family's firm is equivalent to taking the initiative to bear the expenses of the miners, which makes the sect have a little less expenses, but makes the elders no longer care about how the mine is managed. But the miners still can't leave at will, so they don't have real freedom.

Zhuo Ke would arrange for two disciples to go to Anfeng City every month to ask for supplies, and the Han siblings would often prepare surplus food and wine for the disciples to squander. The disciples who were accustomed to the unfettered life of the mine, no matter how much they were eroded by this sugar-coated shell, they would naturally not take care of the affairs of the mine. The only thing they have to do is to ensure the flow of supplies in and out.

But with the last batch of nephrite ore being shipped away, the work of the disciples of the mine was left to guard. However, Nan Qian's daughter will come once a month, symbolically returning to the sect with a little cloud silk gold, but now she is no longer driving the flying boat, but Yujian is only taking Xin'er alone.

Under Nan Qian's guidance, Xin'er has made rapid progress, and she is about to enter the third order of qi refining. And at a young age, she seems to understand her father's situation, so every time she comes, she tries not to cry with her father. However, Luo Jun cried every time, and gradually everyone in the mine accepted his huge contrast.

At this time, Han Nuo was actually somewhere under the mine. He asked Luo Jun to expand a small stone chamber under the pit where Yunsi Gold was first dug out, and then studied the refining of Yunsi Gold in it.

There was a small tripod in the stone chamber, which Han Nuo had borrowed from his master. In this world, any metal is refined and heated with this small tripod. The small tripod has a lid engraved with a rune called a silk talisman, and when the lid and body of the tripod coincide, the rune will take effect.

In Han Nuo's view, this Ding is a pressure cooker. The temperature that can be reached in the tripod depends on the type of flame injected into the tripod.

There are many kinds of existing flames in this world, the most common is of course the charcoal fire used by mortals, supplemented by bellows to blow into the air, which can burn iron from dark red to bright red, according to Han Nuo's experience, the temperature of this flame is generally six or seven hundred degrees, and according to the current experiment, the melting point of cloud silk gold is higher than this temperature.

Above the charcoal fire, there are also earth fires that resemble volcanic lava, as well as Dan fires and infant fires that cultivators above the golden pill have. And the Dan Flame that Elder Liu showed to Han Nuo before, judging from the flame color, should be about 1,400 degrees of golden-white flames.

As for why Hanno knew this, of course, it was because his first job was as a technician in a steel mill. At that time, there was a master in charge of the furnace, and the temperature of the flame could be known by the naked eye, and the error did not exceed 10 degrees.

Therefore, Han Nuo did not plan to go to the earth fire for experiments again, but prepared to go directly to the higher temperature flame. But the difficulty in front of him is that there is no gas in this world.

At first, he planned to start with methane-containing biogas, but found that in this slash-and-burn world, people don't even build biogas digesters. Then he thought of electrolysis of water to make hydrogen and oxygen. As long as these two gases can be obtained, it is not a problem to make a set of oxygen acetylene cutting guns on your own.

However, there is no electricity in this world!

Hanno tried a variety of methods to generate electricity, but all failed. The electrodes generated by the lightning talisman are unstable and instantaneous, equivalent to a tip discharge, which can vaporize a certain amount of water, but it is very difficult to collect gas.

As for the generator driven by the 'motor' made of the wheel rune, although Han Nuo extracted the copper wire with his spiritual power and wound the rotor, the suitable magnet material was very difficult to get. And how to convert the electricity from the generator to DC is also a difficult point. This was a bit difficult for him as a mechanical engineer.

After all, he can't copy the entire Earth civilization into this world.

In the end, Han Nuo's idea was to let himself have the art of lightning control.

Originally, Han Nuo's idea was the most difficult to realize, because to master the thunder spell, the cultivator himself was required to be a thunder spirit root with the mutation of the golden wood spirit root, but Aunt Ming's ancestor solved this problem with the Five Elements Thousand Transformation Technique.

It turns out that just as the verse says, 'The five colors turn into a thousand clouds', the color of the clouds is actually caused by the interweaving of the five colors of light. And the so-called five elements attribute of the true element is also caused by the attribute of the aura, and the vitality as the carrier of the aura, like the white clouds in the sea of clouds, itself is attributeless.

Therefore, for Han Nuo, who cultivates the Five Spirits, as long as he masters the Spiritual Qi Transformation Technique in the Five Elements Thousand Transformation Technique, he can solve the problem of lightning control. So, while continuing to do various experiments, Han Nuo took the time to study the Five Elements Thousand Transformations.

Maybe it's the blessing of the soul, or maybe it's a solid theoretical foundation. One day, after spending an unknown number of days and months in that pit, Han Nuo suddenly let out a loud shout, startling Zhuo Ke and the others to immediately rush to the entrance of the mine.

A few people patrolled there for a while, and no one dared to go directly down to the pit. It wasn't until half a quarter later that Han Nuo himself flew out from below. "Disciple to meet uncle." Zhuo Ke and the others arched.

"What month is it?" Han Nuo looked up at the mountain in the distance, and the grass and trees on the mountain had withered and yellowed.

"Uncle Shi, Uncle Shi has been in retreat for seven months, and it's November now." Drok replied.

"I don't see the light of day in the cave, and I don't know how old the world is, and time is like a shuttle." Han Nuo shook his head, swept through everyone, and threw a porcelain bottle to Zhuo Ke, "A few of you are still half a step away from refining qi now, it seems that this mine is an excellent place to cultivate." ”

"It's just that the sect has decided that it will no longer distribute money to the disciples in the mine after next year." Chen Zhao on the side said.

"It's okay, I have my own ideas about this matter, you can just cultivate with peace of mind. Maybe after the New Year, you won't have to come here anymore. Han Nuo paused, as if he remembered something, and took out a bag of spirit stones and handed them to Zhuo Ke, "The sect trial is extremely dangerous, you can take this spirit stone and buy some talismans for self-defense and life-saving, I hope to see you next time, you can call me senior brother." ”

Seeing this, the disciples were very grateful and gave a big gift to Han Nuo.

After the disciples left, Han Nuo Yujian returned to the sect. From Elder Liu's half-finished product warehouse, he picked out two jar-shaped unfinished artifacts. And this time, the price is naturally another jade card.

It turned out that since the foundation was built, Han Nuo had mastered the skill of using his divine sense to rub the exercises into the jade plate. Han Nuo not only obtained this method of making jade plates, but also learned to rub the story of the novel into the jade plates. What Water Margin Three Kingdoms, what Journey to the West Red Mansion, were all written by him in a different way, but many forgotten plots were adapted by him.

However, this time he did not meet Elder Liu himself, but another elder who had taken over from her in charge of the refining room. The elder didn't agree with Han Nuo taking the two jars at first, until Han Nuo took out a jade plaque that recorded the story of the Fengshen List.

It seems that the spiritual life of immortal cultivators is really poor.

Back at the mine, Hanno began to make hydrogen and oxygen. It's not that he's already learned the art of lightning control, it's that after cultivating the Five Elements Thousand Transformations, he found that he can now strip hydrogen and oxygen out of the air with just spiritual power.

It turns out that the basic skill of the Five Elements Thousand Transformations is to identify and separate the spiritual power of various attributes in the body. In Hanno's view, this process is like defragmenting a computer hard disk.

And when the aura is combined according to a structure similar to the five rings, it becomes a very stable state. The different combinations determine the overall attributes of the aura. Therefore, after Han Nuo completed his spiritual energy arrangement, he unexpectedly broke through the bottleneck of the initial level of foundation building and entered the middle level of foundation building.

Another surprise was that Han Nuo found that he could accurately identify the different properties of the gases in the air. Since he can discern, he can separate, so he used an unexpected method to solve the big problem that had bothered him before.

In half a day, Hanno got two jars of pure hydrogen and oxygen. The next thing to do is to make a set of cutting guns.

On Earth, the nozzle of the cutting gun is made of heat-resistant brass, which is an alloy of copper and zinc. But here, this process is not available. But Han Nuo found another material instead, and that was the blood copper used to make the tripod.

Regarding the composition of blood copper, Elder Liu had used this as a question to test Han Nuo, but Han Nuo did not answer it at that time. Later, he learned that blood copper was a common material for making furnace tripods.

When everything was ready, Han Nuo began his first high-temperature flame experiment. Needless to say, this experiment failed again.

It turned out that the oxygen and hydrogen purified by his spiritual power could not be infused into high-pressure gas, so when the gas flowed through the nozzle of the cutting gun, the flow rate was too low, resulting in the high-temperature flame formed by the combustion of hydrogen and oxygen directly burning the nozzle. This experiment is extremely valuable for Hanno, at least to show that the flame produced by burning hydrogen and oxygen can provide sufficient temperature.

So he began round after round of improvements, and finally solved the technical problem in a way that he didn't expect.

The solution is both simple and practical. It turned out that as he purified oxygen and hydrogen many times, he was so skilled that he could separate these two gases from the air at will. So he simply canceled the two gas canisters and directly sent the two gases into the cutting gun.

As for the flow rate of the gas fed into the cutting spear, Han Nuo could also control it through spiritual power. After several attempts, he was finally able to make the hot flame burn steadily about half an inch from the nozzle.

A month later, Han Nuo reappeared on the third floor of the sect's main hall, and this time, only Elder Deng and Elder Hao met him. Originally, Elder Hao didn't want to see him, but he couldn't resist Elder Deng's invitation, and finally came. Elder Deng, on the other hand, was completely out of the relationship with his apprentice Liu Yan, after all, from a certain point of view, Han Nuo was also his apprentice.

"Start your show." Elder Hao said impatiently.

Seeing this, Han Nuo took out a wooden box without humility or arrogance, "Please take a look at the two elders." ”

With a wave of his hand, Elder Deng took the wooden box in front of him. He opened the wooden box and took out a set of soft-armor magic weapons. "What is this?"

"A set of semi-finished cloud silk armor." Han Nuo replied.

"What is a semi-finished product?" Elder Hao carefully scanned the cloud silk armor and found that the strands on it were all made of gold wires refined from cloud silk gold.

"Elder Yu, he is only shallow in his studies, and his cultivation in refining weapons is still shallow, so he can't make it into a finished product, but it has a virtual form, but no reality." Hanno replied.

Elder Deng then carefully inspected the soft armor in his hand, and after a while, Elder Deng let out a light "Huh", "Although the refining technique is a little rough, the application of the weapon pattern is very appropriate, as a foundation building disciple who has been in contact with refining for less than three years, this thing is already perfect." ”

Hearing Elder Deng's high evaluation, Elder Hao frowned and also came over. Seeing this, Elder Deng simply handed him the cloud silk armor. "This thing doesn't look like much, but I didn't expect it to be so secretive." Elder Hao looked at it carefully for a while, and pointed to Yun Sijia with a happy face and said to Elder Deng.

Elder Deng nodded, very satisfied with Han Nuo's refining attainments. It turned out that the cloud silk armor not only had runes attached to it that could strengthen the defense spell, but also had the function of reducing the consumption of spiritual power, and even designed two pockets with storage bag functions on the body.

"Strange ......" Elder Deng stroked his beard and asked Han Nuo, "How did you refine this cloud silk gold?" Each golden thread is made up of several strands of filament, and for this golden thread alone, even a Jindan monk may not be able to achieve it in a year and a half. ”

"Disciple ......" Han Nuo hesitated, "Can the disciple keep this technique for the time being?" ”

Han Nuo's reply made Elder Deng stunned for a moment, he and Elder Hao glanced at each other, lowered their eyebrows, and nodded.

"Boy, how much can the Yunsi Gold Mine produce in a year?" Elder Hao asked anxiously.

"Elder, with the current mining technology, the output of that mine is enough to make three pieces of cloud silk armor in one year." Han Nuo replied seriously. When Elder Hao heard this, he glanced at Elder Deng again.

After that, the two Yuanying elders asked Han Nuo a lot of details about Yun Sijia, but Han Nuo avoided many questions and only answered some facts that could be known at a glance. The two knew that Han Nuo had reservations, but they finally let him go.

However, Han Nuo, who came out of the main hall of the sect, was not able to descend the mountain immediately, because he was restricted from his range of movement before the resolution of the Council of Elders came out. So he simply went back to the cave and got along with Aunt Ming and Xin'er for a few days. Of course, he also secretly went to meet the maple tree demon spirit, and found that it had been refined to perfection.

The Maple Demon had always blamed Han Nuo for not coming back to see it often, so that it had stayed in the Qi Refining Consummation for several months, but it was unable to build a foundation because it didn't have a foundation building pill. Han Nuo was also generous, and immediately took out two Tsukidan pills and handed them to him, and told him to be careful, after all, there were still a few Yuan Infant Ancestors in the sect who were always there.

As for why Han Nuo still had the Tsukidan, it was naturally due to the fact that he had left some backup for all the pills.

The resolution of the Council of Elders was handed down a month later. And in the middle of this month, two major events happened in the sect.

The first major event occurred on the evening of the twentieth day after Han Nuo returned to the sect.

Just after that day, a colorful glow suddenly appeared above Tianyun Peak. At first, people thought that the vision was an illusion caused by the afterglow of the setting sun, until they discovered that there were some points of light swimming in it. Han Nuo had just returned to Diyun Peak from the sea of clouds at that time, and when he saw this vision, he immediately took Aunt Ming and Xin'er out of the cave to watch it together.

The vision lasted until three o'clock, and almost the entire Tianyunmen came out to watch. The boiling voices caused many Jindan elders in Qingyun robes to come out to maintain order and order a ban on the noise. And the five Primal Ancestors in the sect used coercion to protect Tianyun Peak to prevent anyone from entering it by mistake.

Han Nuo didn't understand the doorway until Aunt Ming told him that it was a certain Jindan elder who was getting married. And the sign of the success of the baby is that those swimming Heaven and Earth True Elements were instantly sucked into the clouds and mist on the top of Tianyun Peak along with the glow.

"Won't there be a thunderbolt when you form a primordial baby?" Afterwards, when he returned to the cave, Han Nuo asked Aunt Ming.

"As far as the old body knows, there are some very special spiritual roots that will trigger the heavenly thunder when they are infants." Aunt Ming replied. Hearing what she said, Han Nuo nodded thoughtfully, and began to guess who Elder Jin Dan was who was getting married today, and a name instantly appeared in his mind.

Seven days later, Han Nuo officially knew the answer to his question. Tianyunmen sent invitations to several nearby sects to celebrate the formation of the Yuan Infant by Liu Yan, the Elder of the Sect's Refining.

And it was at that celebration that the second big thing happened. It was Liu Yan, who had just married a baby, who used his strength in the early stage of his marriage to defeat Elder Jiang in the middle stage of the Haoran Alliance, and won the competition in an almost crushing way, which surprised all the sects.

And it was precisely because of Liu Yan's marriage and the competition with Elder Jiang that Han Nuo's situation changed drastically.

First, Han Nuo, as Liu Yan's only disciple, not only had a Yuanying master, but also Elder Deng, a master. The protection of the two ancestors made him fully appreciate the feeling of having someone on top. Second, because of the cloud silk armor, it was with this thing that Liu Yan unexpectedly defeated Elder Xu.

As a result, the Cloud Silk Gold Mine and the Cloud Silk Armor became the top secret of Tianyun Gate overnight.